Catalog > Semiconductors > Integrated Circuits TDA1557Q IC 2 X NF-E BTL 18V 4A 2 X 22W (14,4V/4R) Part No: TDA1557Q 31.05 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Power 22W Mounting THT Number of channels 2 Case QILP13